Very high disk IO on one VM when another active

stukerr

New Member
Feb 14, 2023
1
0
1
Hi all,

This has me really scratching my head. I have one VM running an instance of home assistant (hassio) which has been running fine alongside other VMs (mix of windows 10 and various linux distros) for a while now.

I recently set up another VM to run Blue Iris NVR software under Windows 11. Within a few hours disk reads on the HA instance went from not very much to 700 million. Stopping the Blue Iris VM stopped this straight away.

I updated my PVE to 7.3-6 hoping that might fix it, which it did for about 12 hours until the same thing happened again - with again stopping the BI VM stopping the issue.

There's no real network traffic between the two instances so I don't think it's network interaction between the two.

Just wondering if anyone has come across such a problem before or would have any ideas what could cause such a massive jump in disk reads?

Both are on an NVME Samsung 970 disk - with the BI VM using an attached drive passed through direct for the recordings.

I've tried with a couple of different Windows 11 VMs now and both have done the same thing - so I don't think it's anything particular to the Blue Iris vm.

Thanks,

Stuart
 

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